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Method for preparing insulating film attached to touch screen

A technology of insulating film and touch screen, applied in ion implantation plating, metal material coating process, coating and other directions, can solve the problems of unstable metal oxide film, unusable touch screen, failure of insulating film, etc., and achieve unique metal color and luster , Not easy to change color, good bonding effect

Inactive Publication Date: 2010-06-23
WUHU TOKEN SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] A layer of insulating protective film is attached to the surface of mobile phone LCD liquid crystal protection screen and home appliance touch screen, the purpose is insulation, anti-static, anti-electric shock; the coating layer in the prior art is tin oxide film, but this metal oxide film is unstable, even Defects such as discoloration or peeling occur, resulting in failure of the insulating film and unusable consequences of the touch screen

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] 1) Screen the PC / PMMA substrate, wash with deionized water to remove debris around the substrate, and then dry it with hot air;

[0017] 2) Put the substrate into the substrate frame of the equipment, tear off the protective film on the surface, and perform electrostatic dust removal;

[0018] 3) Send the substrate rack into the vacuum chamber for vacuuming, first perform pre-vacuumization, and the vacuum degree is 5×10 -2 Torr;

[0019] 4) Enter the No. 2 vacuum chamber, and vacuum up to 3×10 -3 Torr, while heating the substrate to 80°C;

[0020] 5) Send the substrate frame into the sputtering coating chamber, and perform pulse reactive sputtering to deposit NiO film, the vacuum degree is 5×10 -3 Torr, the pulse frequency of the power supply is 400HZ;

[0021] DC power supply

(KW)

Pulse electricity

source

anode voltage

(V)

Vacuum

(Torr)

Ar / H 2

(sccm)

o 2 (sccm)

...

Embodiment 2

[0026] Step 1) and step 2) are the same as in Example 1;

[0027] 3) Send the substrate rack into the vacuum chamber, and perform pre-vacuumization first, with a vacuum degree of 4×10 -2 Torr;

[0028] 4) Enter the No. 2 vacuum chamber and evacuate to 2×10 -3 Torr, while heating the substrate to 70°C;

[0029] 5) Send the substrate frame into the sputtering coating chamber for pulse reactive sputtering to deposit NiO film; the vacuum degree reaches 4×10 -3 Torr, the pulse frequency of the power supply is set to 400HZ;

[0030] DC power supply

(KW)

Pulse power supply

anode voltage

(V)

Vacuum

(Torr)

Ar / H 2

(sccm)

o 2

(sccm)

4.5

yes

480

4×10 -3

20 / 0

2

[0031] 6) Send the substrate rack into the transition chamber with a vacuum of 3×10 -3 Torr;

[0032] 7) Send the substrate rack into the unloading chamber with a vacuum of 4×10 -2 Torr, cool the substrate to 20 °C.

[0033...

Embodiment 3

[0035] Step 1) and step 2) are the same as in Example 1;

[0036] 3) Send the substrate rack into the vacuum chamber, and perform pre-vacuumization first, with a vacuum degree of 4×10 -2 Torr;

[0037] 4) Enter the No. 2 vacuum chamber and evacuate to 3×10 -3 Torr, while heating the substrate to 75°C;

[0038] 5) Send the substrate frame into the sputtering coating chamber for pulse reactive sputtering to deposit NiO film; the vacuum degree reaches 3×10 -3 Torr, the pulse frequency of the power supply is set to 400HZ;

[0039] DC power supply (KW)

Pulse power supply

Anode voltage (V)

Vacuum

(Torr)

Ar / H 2

(sccm)

o 2

(sccm)

4

yes

450

4.5×10 -3

50 / 0

5

[0040] 6) Send the substrate rack into the transition chamber with a vacuum of 2×10 -3 Torr;

[0041] 7) Send the substrate rack into the unloading chamber with a vacuum of 5×10 -2 Torr, cool the substrate to 20 °C.

[0042] On...

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PUM

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Abstract

The invention discloses a method for preparing an insulating film attached to a touch screen. A magnetic control reactive sputtering method is used to generate chemical reaction on a touch screen substrate surface by Ni and O2 under a vacuum condition to deposit a layer of NiO film. The preparation method comprises the following steps: the degree of vacuum is 3 - 5x10-3Torr, substrate is heated to 70-80 DEG C, and the NiO film is deposited by magnetic control reactive sputtering. Compared with the prior art, the method is used to deposit the NiO film with nanometer thickness on the touch screen substrate surface. The NiO film has uniform film layer, compactness and good adhesion, so the insulating film has good insulation, anti-static and anti-shock performance. The film layer has good binding force and high permeation rate. The method is suitable for the industrial production of mobile phone LCD protection screens and insulating films of touch screens of home appliances.

Description

technical field [0001] The invention relates to a method for preparing an insulating film attached to a touch screen. Background technique [0002] A layer of insulating protective film is attached to the surface of mobile phone LCD liquid crystal protection screen and home appliance touch screen, the purpose is insulation, anti-static, anti-electric shock; the coating layer in the prior art is tin oxide film, but this metal oxide film is unstable, even Defects such as discoloration or peeling occur, resulting in failure of the insulating film and unusable consequences of the touch screen. Contents of the invention [0003] The technical problem to be solved by the invention is to provide a method for preparing a touch screen insulating film with stable film layer and strong adhesion. [0004] In order to achieve the above object, the technical solution adopted by the present invention is: the preparation method of the insulating film comprises: -3 Torr, heat the substra...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/35C23C14/08C23C14/54
Inventor 陈奇沈励许沭华石富银迟晓晖
Owner WUHU TOKEN SCI